Light diffuser



FIG. 1 is a bottom plan view of a light diffuser showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top, front, and side perspective view thereof;

FIG. 4 is a bottom, front, and side perspective view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a side elevation view thereof, wherein the opposite side appears the same in mirror image thereof.

The broken lines shown in the drawings illustrate portions of the light diffuser that from no part of the claimed design. 

CLAIM The ornamental design for a light diffuser, as shown and described. 